Lubrication of internal-combustion engines.



J. ADAMS.

LUBRICATION OFINTBRNAL COMBUSTION ENGINEA APPLICATION FILED APR.14, 1913.

lm Patented Feb. ze, 191A @eN/WWW @www UNITED sTATEs PATENT oEEroE.

JORDAN ADAMS, OF LONDON, ENGLAND.

LUBRICATION OF INTERNAL-COMBUSTION ENGINES.

l To all whom t may concern:

Be it known that I, JORDAN ADAMS, a subject of the King of Great Britain, and a resident of No. 274 Bank Chambers, Holborn, London, W. C., England, have invented new and useful lmprovements Relating to the Lubrication of Internal-Combustion Engines, of which the following is the' speci-v lication.

This invention relates to improvements in the lubrication of the cylinders oit' internal combustion engines particularly applicable tothe lubrication of rotary explosion engines. l

The invention essentially consists in conducting between the walls of the piston and the cylinder in the form of a thin layer or lilm a portion of the oil which has just lubricated the head of the co-nnecting rod, this oil being passed through the pivot or gudgeon pin of the piston into an annular groove formed in the thickness of the piston. In this manner an absolutely regular and constant lubrication of the cylinder is obtained without any loss of the oil.

ln theJ accompanying drawings :Figure 1 shows in longitudinal section the lubri eating device applied by way of example to the cylinders of an internal combustion engine of the type known lunder the name of the Gnome engine, Fig. 2 is a crosssection along the line A--A of Fig; 1.

T he piston Y is integral with an annular boss 7c in which is formed an annular groove 7' for distributing the oil in the form of a thin layer or ilm between the walls of the piston and the cylinder. In this groove and along one diameter two metal tubes tele: scopically mounted at the interior of the pivot or gudgeon pin n of the piston open out. These tubes rest elastically by means of a spring o against conical abutments reserved on the projection r, so as hermetically toconnect up with the annular groove 1". The oil passes to the bearing m through a groove Z formed in the latter, and then passes through the channel or passage w to the interior of the two tubes t and from there passes to the annular groove r where it assures the lubrication of the cylinder as described above.

Instead' of the tubes t resting elastically against the projection 7c they may be connected up rigidly to the piston. lt would suflice for this to screw them for example into the projection by reserving on the lat- Specification of Letters Patent.

Patented Feb. 24, 1914.

. Application led April 14, 1913. Serial No. 760,987.

its extensions from the stationary crank pin will of course be centrifugal, while in other engines, this force will be that supplied by a pump.

What I do claim as my invention and desire to secure by Letters Patent is 1. A lubricator including a piston having a passage for-conducting lubricant extending along its rod portion and connected at its outer end with a suitable source of supply, said piston having a gudgeon pin at its head portion, the gudgeon pin being provided with an opening communicating with said passage, and a tube communicating with said opening, said tube extending from the gudgeon pin to the wall of the piston head and communicating with the exterior there of for conducting lubricant to the interior of the cylinder.

2. A lubricator including a piston having Aa passage for conducting lubricant extending along its rod portion and connected at its outer end with a suitable source of supply, said piston having a gudgeon pin at its head portion, the gudgeon pin being provided with an opening communicating with said passage, and oppositely disposed tubes slidably mounted in the said pin and communicating with the said passage and with the exterior of the piston head, and yieldable means for urging the tubes outwardly,

3. A lubricator includinof a piston having a passage for conducting lu ricant extending along its rod portion and connected at its outer end with a suitable source of supply, said piston having a gudgeon pin at its head portion, the gudgeon pin being provided with an opening communicating with said passage, oppositely disposed. tubes slidably mounted in the said pin and communicating with the said passage and with the exterior of the piston head, and a spring interposed between the inner ends of the tubes for urging the same outwardly.

4. A lubricator including a piston having a lubricant passage extending along its rod portion and connected at its inner end with a suitable source of supply, said piston having a transverse gudgeon pin at its head portion and provided at points opposite the ends of the gudgeon pin with lateral openings, the

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gudgeon pin being also provided with a duct communicating With said passage, and tubes mounted in the gudgeon pin communicating at their inner ends with said duct and having their outer ends in communication with the said openings.

5. A lubricator including a piston having a lubricant passage extending along its rod portion and connected With a suitable source of supply, said piston having a transverse gudgeon pin and provided at points opposite the ends of the gudgeon pin With interiorly tapered lateral openings, tubes having conical outer ends fitting the said tapered openings, and having their inner ends in communication With the said duct.

6. A lubricator including a piston having mesme a lubricant passage extending along its rod portion and connected With a suitable source of supply, said piston having a transverse gudgeon pin and provided at points opposite the ends or' the gudgeon pin With lateral openings and with an exterior groove connecting the said openings, the gudgeon pin being provided With a ductpcommunleating with said passage, tubes extending from the said gudgeon pin and having their outer ends in communication with the said openings, and communicating at their inner ends With the said duct.

JORDAN ADAMS.

Vfitnesses J. D. ROOTS,

G. J. WORTH. 

